摘要:
A method of manufacturing a flash memory device includes the steps of forming gate patterns for cells and gate patterns for select transistors over a semiconductor substrate, forming a buffer insulating layer on the resulting surface including the gate patterns, forming an insulating layer to form void in spaces between the gate patterns for cells, forming a nitride layer on the insulating layer, and forming a spacer on one side of each of the gate patterns for select transistors by a spacer etch process.
摘要:
A flash memory device includes an isolation layer formed on an isolation region of a semiconductor substrate, a tunnel insulating layer formed on an active region of the semiconductor substrate, a first conductive layer formed over the tunnel insulating layer, a dielectric layer formed on the first conductive layer and the isolation layer, the dielectric layer having a groove for exposing the isolation layer, a trench formed on the isolation layer and exposed through the groove, and a second conductive layer formed over the dielectric layer the trench.
摘要:
The invention discloses a method of forming an isolation layer in a semiconductor device. The method includes providing a semiconductor substrate having a trench formed therein; forming a first insulating layer in the trench; and forming a densified second insulating layer on the first insulating layer. In the above method, a void is not generated in the isolation layer so a bending phenomenon of an active region can be reduced or prevented to improve an electrical characteristic of the semiconductor.
摘要:
The present invention discloses to a method of forming an isolation layer in a semiconductor device. In particular, the method of forming an isolation layer in a semiconductor device of the present invention comprises the steps of providing a semiconductor substrate on which a trench is formed; forming spacers on side walls of the trench; forming a first insulating layer to fill a portion of the trench such that a deposition rate on the semiconductor substrate which is a bottom surface of the trench and exposed between the spacers is higher than that on a surface of the space; and forming a second insulating layer on the first insulating layer so as to fill the trench with the second insulating layer. An O3-TEOS layer on the exposed semiconductor substrate which is a bottom surface of the trench is grown faster than that on a surface of the spacer formed of an oxide layer or a nitride layer to prevent the O3-TEOS layers grown on the side walls from coming into contact with each other, and so it is possible to inhibit a generation of a seam and to enhance a gap-filling characteristic for the trench.
摘要:
A method of forming a metal line in a semiconductor device, including the steps of forming a metal line in a semiconductor device in which dummy patterns are formed on a dummy region by using non-metal material when a metal line is formed through a damascene process to prevent a formation of an oxide layer on an aluminum layer caused by a slurry and cleaning solution used in the chemical mechanical polishing (CMP) process and carry out an uniform polishing process, whereby it is possible to prevent a digging phenomenon on a metal layer from being generated.
摘要:
A semiconductor device includes a first barrier metal layer and a second barrier metal layer, a third barrier metal layer, and a metal line. The first barrier metal layer and the second barrier metal layer are formed and on a top surface of an insulating layer over a semiconductor substrate on the bottom surface of trenches formed in the insulating layer. The third barrier metal layer is formed on sidewalls of trenches. The metal line gap-fills the trenches. In a method of forming a metal line of a semiconductor device, trenches are formed within an insulating layer over a semiconductor substrate. A first barrier metal layer and a second barrier metal layer are formed on a bottom surface of the trenches and on a top surface of the insulating layer. A third barrier metal layer is formed on sidewalls of trenches. A metal line gap-fills the trenches.
摘要:
A semiconductor device includes a first barrier metal layer and a second barrier metal layer, a third barrier metal layer, and a metal line. The first barrier metal layer and the second barrier metal layer are formed and on a top surface of an insulating layer over a semiconductor substrate on the bottom surface of trenches formed in the insulating layer. The third barrier metal layer is formed on sidewalls of trenches. The metal line gap-fills the trenches. In a method of forming a metal line of a semiconductor device, trenches are formed within an insulating layer over a semiconductor substrate. A first barrier metal layer and a second barrier metal layer are formed on a bottom surface of the trenches and on a top surface of the insulating layer. A third barrier metal layer is formed on sidewalls of trenches. A metal line gap-fills the trenches.
摘要:
The present invention discloses a method for manufacturing a semiconductor device, comprising the steps of: providing a semiconductor substrate on which cell strings are formed and in which a plurality of conductive regions are formed; sequentially forming a first interlayer insulation film and a first etch barrier film on the semiconductor substrate; forming a plurality of contact holes by exposing the plurality of conductive regions formed in the semiconductor substrate, wherein an impurity concentration of the conductive regions is reduced due to the process for forming the contact holes; filling a metal material in the contact holes and forming a plurality of contact plugs; sequentially forming a second interlayer insulation film, a second etch barrier film and a third interlayer insulation film over a resulting structure including the contact plugs; forming a plurality of metal line patterns, wherein the metal line patterns pass through the third interlayer insulation film, the second etch barrier film and the second interlayer insulation film and contact to the contact plugs; forming a fourth interlayer insulation film over a resulting structure including the plurality of metal line patterns; forming a plurality of metal line contact holes by patterning the fourth interlayer insulation film; and forming a plurality of metal line contact plugs in the plurality of metal line contact holes by filling a metal material in the metal line contact holes.
摘要:
In the method for fabricating a metal wiring, an insulation film is formed on a semiconductor substrate. The insulation film has a contact hole exposing the semiconductor substrate. A Ti—Si film is formed over the silicon substrate, and a Ti—Si—N film is formed on the Ti—Si film. The contact hole is then filled by depositing copper on the Ti—Si—N film, and a silicon nitride film is formed over the silicon substrate.
摘要:
Disclosed herein is a semiconductor device and method of manufacturing the same. A step between a memory cell formed in a cell region and a transistor formed in a peripheral circuit region is minimized, and the height of a gate in the memory cell is minimized. Accordingly, subsequent processes are facilitated and the electrical property of the device is thus improved.